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利用Gabriel反应以聚环硫氯丙烷为起始物合成4种新型的以聚硫醚为主链的伯胺型树脂,研究了树脂的合成条件及吸附性能.这些树脂对贵金属离子有很高的吸附容量,其中每克树脂对Au(Ⅲ)的吸附容量达到5~7mmol,对Ag+的为7~9mmol;而对贱金属离子吸附甚少,可望用于贵金属离子Au(Ⅲ)和Ag+的分离与富集.
In this paper, four kinds of novel polythioether-based primary amine resins were synthesized using polycyclic thiochloropropane as starting materials by Gabriel reaction. The synthesis conditions and adsorption properties of the resins were studied. These resins have a very high adsorption capacity for precious metal ions, of which the adsorption capacity per gram of resin for Au (III) is 5 to 7 mmol and for Ag + 7 to 9 mmol; while the adsorption of base metal ions is very little and is expected to be used in Separation and Enrichment of Au (Ⅲ) and Ag + in Precious Metal Ions.